Author Topic: M98 or M85 ?  (Read 1318 times)
sol
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M98 or M85 ? « on: May 18, 2019, 10:03:50 AM » Author: sol
I have a double ended MH lamp in 70W. It is an Osram PowerBall. I haven't gotten around to lighting it, but I might soon, but I need to find a suitable fixture first. Anyways, back to the subject, I have seen some M85 ballasts on eBay that specifically say it is to be used for double ended lamps and should not be used for single ended standard MH lamps. I have always assumed that M98 ballasts would be suitable for this, and I have a couple of them and intended to use one of those (M98). Now I am confused as to what I can use for this double ended lamp.

So the question here is can a double ended 70W MH lamp can be used with M98 ballasts ? The lamp came from Germany (from a German seller on eBay) and so is not labelled for the North American market. There are no ANSI codes on neither the packaging nor the lamp.

Many thanks.
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Max
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Re: M98 or M85 ? « Reply #1 on: May 18, 2019, 10:23:45 AM » Author: Max
No, the lamp should not be used with the M98 ballast as it is not electrically compatible. According to Sylvania, this control gear is for the 0.9 A /70 W MH lamps, which are indeed of the single-ended kind filled with sodium and scandium iodides. The proper ballast for your Osram HCI PowerBall 70W is the M85, designed for an operation at a higher discharge current (1.0 A).
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sol
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Re: M98 or M85 ? « Reply #2 on: May 18, 2019, 10:48:43 AM » Author: sol
Merci pour les conseils.

I have seen some electronic ones on eBay, I might get one because magnetic gear here is quite large with an obligatory capacitor etc and it most likely won’t fit into whatever fixture I intend to make.
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Re: M98 or M85 ? « Reply #3 on: May 19, 2019, 08:59:28 AM » Author: Max
De rien :)
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